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首页> 外文期刊>International Journal of Mechanical Engineering Education >Connecting unsteady-state and steady-state analyses using heat transfer and fluids examples
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Connecting unsteady-state and steady-state analyses using heat transfer and fluids examples

机译：使用传热和流体实例连接非稳态和稳态分析

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摘要

In many undergraduate courses, emphasis is given to the analysis of steady-state situations, in spite of the fact that unsteady-state situations are common in engineering problems. For instance, while discussing heat transfer, unsteady-state topics are introduced to students without connection to steady-state situations. This paper presents a few common situations, some of them often treated only as their steady-state counterparts, that have been used to offer students an interesting and pedagogically rich unsteady-state and steady-state analysis. The methodology proposed herein bridges unsteady-state and steady-state situations and helps subject integration. Some criteria for model simplification are offered. The present paper focuses on heat conduction. However, radiation and convective heat transfer can be similarly analysed.
机译：尽管在工程问题中非稳态情况很常见，但在许多本科课程中，都着重于对稳态情况的分析。例如，在讨论传热时，向学生介绍了非稳态主题，而与稳态情况无关。本文介绍了一些常见的情况，其中一些通常仅被视为稳态情况，用于向学生提供有趣且教学法丰富的非稳态和稳态分析。本文提出的方法学将非稳态和稳态情况联系起来，并有助于主体整合。提供了一些简化模型的标准。本文着重于热传导。但是，可以类似地分析辐射和对流传热。

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